RCAUSEReset Cause Address0x40000C00 Reset0x00 Accessread only7–6SYST5WDT4EXT3–2BODVDD1BODCORE0POR6 fields FieldBitsWhat it doesSYST6System Reset RequestWDT5Watchdog ResetEXT4External ResetBODVDD2Brown Out VDD Detector ResetBODCORE1Brown Out CORE Detector ResetPOR0Power On Reset